Si 75® is a bifunctional, sulfur-containing organosilane for rubber applications in combination with white fillers containing silanol groups.
Scope of Application
Si 75® reacts with silanol groups of white fillers during mixing and with the polymer during vulcanization under formation of covalent chemical bonds. Compared to the polysulfidic organosilane Si 69®, Si 75® has a higher temperature stability and therefore allows higher mixing temperatures. Si 75® imparts greater tensile strength, higher moduli, reduced compression set, increased abrasion resistance and optimized dynamic properties. Application fields are: Low rolling resistance tires